| Abstract: A 3d-4f coordination polymer {[CoEu2(INAIP)4(H2O)6]·2.5H2O}n(1) was obtained by hydrothermal assembly of Co(OAc)2·4H2O and Eu(NO3)3·6H2O with H2INAIP (5-(isonicotinamido)isophthalic acid). Complex 1 crystallizes in triclinic, space group P1 with a=1.008 89(13) nm, b=1.082 34(14) nm, c=2.979 5(4) nm, V=3.200(7) nm3, Z=1, C112H90Co2Eu4N16O57, Mr=3 297.70, Dc=1.711 g·cm-3, μ=2.285 mm-1, F(000)=1 636, Rint=0.025 8, R=0.049 2, wR=0.126 3. Single-crystal X-ray diffraction analysis revealed that each INAIP2- ligand uses its two carboxyl groups to connect two/three lanthanide centers, and the Co(Ⅱ) only bonds to the pyridyl group and terminal water molecules, then forming the two-dimensional (2D) bilayer. On the other hand, the 2D layers are further connected by hydrogen bonds interactions to give a three-dimensional (3D) supramolecular structure. In addition, the luminescent property of complex 1 has been investigated at room temperature, indicating the red photoluminescence exists in it. CCDC: 834796. |
